diff --git a/config/horizon.php b/config/horizon.php
index 1b150d9f4..585495bcd 100644
--- a/config/horizon.php
+++ b/config/horizon.php
@@ -91,4 +91,6 @@ return [
             ],
         ],
     ],
+
+    'darkmode' => env('HORIZON_DARKMODE', false),
 ];